30494151 has 10 divisors (see below), whose sum is σ = 45553112. Its totient is φ = 20329380.

The previous prime is 30494147. The next prime is 30494153. The reversal of 30494151 is 15149403.

It is not a de Polignac number, because 30494151 - 2² = 30494147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30494153) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 188155 + ... + 188316.

Almost surely, 2^30494151 is an apocalyptic number.

30494151 is a deficient number, since it is larger than the sum of its proper divisors (15058961).

30494151 is an equidigital number, since it uses as much as digits as its factorization.

30494151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376483 (or 376474 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 30494151 is about 5522.1509396249. The cubic root of 30494151 is about 312.4200149427.

The spelling of 30494151 in words is "thirty million, four hundred ninety-four thousand, one hundred fifty-one".